Try to hook up the camera to a power surge if you have an adapter so that when you turn it on you can navigate on the settings and camera wont shut off, check on the settings if there are other mode aside from Green mode and select it, chances if there is no other setting, you are having an issue with your camera, hardware issue. call manufacturer's support line for warranty verification. best i got. thanks for using fixya!

You can try switching over to 2500 mAh Nickel Metal Hydride rechargeable batteries and you will see a difference.

Digital cameras with zoom lens need more power than what can be supplied by ordinary batteries.

You can try switching over to 2500 mAh Nickel Metal Hydride rechargeable batteries and you will see a difference.
Digital cameras with zoom lens need more power than what can be supplied by ordinary batteries.

Mostcameras have a lock mechanism on the battery cover. The camera will notturn on if the battery cover is not locked or securely closed, or ifthe CF card (SD card) slot cover is not securely closed. Make surethese covers are securely closed.

2)Try removing the batteries and the mem card for few min. and then insert only the batteries and see if it turns on.

Few troubleshooting steps you can try before replacing the new batteries:

Most
cameras have a lock mechanism on the battery cover. The camera will not
turn on if the battery cover is not locked or securely closed, or if
the CF card (SD card) slot cover is not securely closed. Make sure
these covers are securely closed.

2)Try removing the batteries and the mem card for few min. and then insert only the batteries and see if it turns on.

3)Whencamera does not operate with a brand-new alkaline battery (for camerasthat use AA-size batteries) or with a fully charged rechargeablebattery, the terminals may be dirty.

Polishthe terminals with a dry cloth and make sure the terminals are clean.If the terminals are covered with oil from your skin or similar matter,this may cause poor contact and power may not be fully supplied to thecamera.

Also, polish the battery charger terminals with a dry cloth beforecharging the battery. If the terminals are covered with oil from yourskin or similar matter, this may cause poor contact and the battery maynot be fully charged.

If you still face the problem then switch to new batteries.

3)When
camera does not operate with a brand-new alkaline battery (for cameras
that use AA-size batteries) or with a fully charged rechargeable
battery, the terminals may be dirty.
Polish
the terminals with a dry cloth and make sure the terminals are clean.
If the terminals are covered with oil from your skin or similar matter,
this may cause poor contact and power may not be fully supplied to the
camera.

Also, polish the battery charger terminals with a dry cloth before
charging the battery. If the terminals are covered with oil from your
skin or similar matter, this may cause poor contact and the battery may
not be fully charged.

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Related Questions:

Hi Keith, The link below is the user manual for the Pentax Optio E30 Digital Camera, On page 56 it says
• In Green Mode, you cannot change the information displayed on the LCD monitor by pressing the 4/W button.
• You cannot use the [A Rec. Mode] menu or Capture Mode Palette in Green Mode. If you try to display the [A Rec. Mode] menu or Capture Mode Palette, - (key lock icon) appears.
• If you switched to Q mode from Green Mode, you cannot display the [H Setting] menu by pressing the 3 button. If you try to display the [H Setting] menu, - (key lock icon) appears.
• When the camera is turned off in the Green Mode, it turns on in the Green Mode next time the power switch is pressed.
THIS IS YOUR CAMERAS USER MANUAL.....CHEERS..

Press and hold the playback button for 2 seconds. The camera should turn on and be in playback mode. Switch to Camera Mode by opening the from slider cover. Hope that fixes it. See Pentax Z10 Manual Page 34.http://www.pentaximaging.com/files/manual/OptioZ10.pdf
Cheers Jon. Sydney Australia.

Your point n shoot camera has an ISO adjustment in the menu. Be sure that is set to no more than 400 indoors and no more than 100 outdoors.

If it has something called exposure Value or Ev, set that to zero.

Or, if you really want to see if the camera is not working properly, set it to the green auto mode and take a picture. If in auto mode, it still comes out over-exposed there is probably a problem with the camera.

Found the following on a website about these cameras...http://www.digitalcamerainfo.com/content/Pentax-Optio-M20-Digital-Camera-Review/Modes.htm"The second, and previously mentioned automatic mode, is the Green mode
that restricts the camera controls to two flash settings, three AF
options, zoom, and a self-timer setting. This mode locks out the menu
systems, manual focus, mode menus and other options. It’s definitely
easy to use, as all one can really do is point and shoot."

This may be a internal software confusion problem. If it is, the following may help.Make sure your buttons or dials are not on AUTOMATIC, that appears to set the green mode.I think I would remove the batteries. Next, if the camera has a small battery (similar to the bios battery in computers) remove that as well. Let the camera sit over night. You will need enough time for the capacitors to discharge. Then put the batteries in again, and try.

turn it on... then as it's loading up... hold the "menu" buttoni think this forces it to stay on...i changed the green button to be something else... not green modethen i just turned it off and on again